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Date:   Tue, 25 Jan 2022 15:11:48 +0100
From:   Takashi Iwai <>
To:     "Gustavo A. R. Silva" <>
Cc:     "Geoffrey D. Bennett" <>, Jaroslav Kysela <>,
        Takashi Iwai <>,,,
Subject: Re: [PATCH v2][next] ALSA: usb-audio: scarlett2: Use struct_size() helper in scarlett2_usb()

On Thu, 20 Jan 2022 22:16:00 +0100,
Gustavo A. R. Silva wrote:
> Make use of the struct_size() helper instead of an open-coded version,
> in order to avoid any potential type mistakes or integer overflows that,
> in the worst scenario, could lead to heap overflows.
> Also, address the following sparse warnings:
> sound/usb/mixer_scarlett_gen2.c:1064:28: warning: using sizeof on a flexible structure
> sound/usb/mixer_scarlett_gen2.c:1065:29: warning: using sizeof on a flexible structure
> Link:
> Signed-off-by: Gustavo A. R. Silva <>
> ---
> Changes in v2:
>  - Use correct format specifier %zu for type size_t argument.

Applied now.  Thanks.


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